Research shows that sleep deprivation makes people emotionally volatile and temperamental — a fact that hasn’t escaped the notice of some reality TV producers. In fact, though it’s not always obvious to the audience, many reality shows feature contestants who could use a little more sleep.
This is not so different from what actual sleep researchers observe in the lab. Mary Carskadon at Brown University says sleep-deprived people tend to be emotionally volatile.
“You have the little girls on their sleepovers giggling themselves silly. But you also have people who have short tempers or easily cry,” says Carskadon. “I guess all things that do make for high drama.”